Sounds like a great way for a group of friends to try to ban innocent players they dislike.
I liked @JoeStrout 's idea about weight based on how often they report.
Someone who gives a thumbs down to everyone, every game, should be dismissed as a troll themselves. While someone who rarely or never reports, would likely only do so if it is really really bad.
I personally would have two separate ways to report. One being for chat, which is easily accessible, and does nothing, and a more inconvenient report for negative action (feeding, etc.) Sticks & stones may break your bones, but words wont hurt your gaming.
I also am of the camp that you should never under any circumstances except Cheating, ban anyone for anything. It is not only contrary to good business but IMO a violation of Consumer’s Rights.
Instead, I think a big problem lies in the designs of many games. MOBA games are among the most toxic by such an enormous margin. Even their tournament players get banned for toxicity. It is that bad. However the game’s design encourages this toxicity. Not only does it not discourage it, it encourages it. The game is purposefully designed in a way which makes even good people toxic.
That is in how unfriendly MOBA games are. You are punished for leaving a match. You are banned for it. You are punished by being unable to surrender early even if youre being trolled.
This alone causes a huge amount of toxicity. If youre no longer having fun, the entire purpose of a video game, and the developer locks you in to waste your life for 20-40 minutes, a good way to get it back is to troll, piss everyone off, and thus have fun. Those players arent even necessarily bad. The game is bad for locking them in by force.
So long before you come up with ideas of how to creatively punish players, you should consider fixing your design problems instead.
I guarantee a huge amount of toxicity in MOBA games would be resolved simply by respecting the player’s time more. It would also raise the medium age, as adults are much less likely to waste their lives away having no fun for 20-60 minutes than jobless teenagers.
I stopped playing MOBA games myself many years ago simply due to how little the developers respected my time. I have better things to do than wait 40 minutes for my team to lose simply bc 1 second in someone disconnected.
I also wont lie. I know how to manipulate most multiplayer systems. I can ban anyone I want in a few MMO’s just by running a few virtual machines. I have never done it, but I know those who have. Pissing off the wrong guild can also get you banned very quickly. Quantity Reporting (instead of quality) and Automated Bans are ripe for abuse by people smart enough to use multiple accounts or have alot of friends/guildmates.
In some cases, you’re actually introducing more trolling via report features than you are preventing. This is especially true with automation, but even manual bans from human employees are still easily biased by quantity of reportiny by trolls/guilds. This is why IMO bans should only be reserved for cheaters. In many games, you can read pages upon pages of angry customers of MMOs who were unfairly banned via automation or paid employees having a bad day.